Research progress on animal models of autoimmune gastritis. Jiaqi Wang Xiyan Zhang Jinna Tao Baixiang He Lan Wang Zhongmian Zhang Yiyuanzi Zhao Zhihong Li a Department of Spleen and Stomach Diseases, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, Chinab Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, Dongcheng, China